Trailerrific: Exam

This sounds intriguing:

Eight talented candidates have reached the final stage of selection to join the ranks of a mysterious and powerful corporation. Entering a windowless room, an Invigilator gives them eighty minutes to answer one simple question. He outlines three rules they must obey or be disqualified: don’t talk to him or the armed guard by the door, don’t spoil their papers and don’t leave the room. He starts the clock and leaves. The candidates turn over their question papers, only to find they’re completely blank.

Exam debuted a couple months ago at the Edinburgh Film Festival, with a release date in the UK for January 8th 2010, and it looks pretty interesting. The trailer is pretty cool, but again gives away more than I feel comfortable with. Do we really have to see that much of movie? I suggest watching it halfway to three quarters. The final bits seem to spoil too much:

So what did you think? Did you watch it to the end? Too spoilery or not?